VCC (Voltage Common Collector) is the power supply of a device .

Why is VCC used?

VCC (Voltage Common Collector) is the higher voltage with respect to GND (ground). VCC is the power input of a device. It may be positive or negative with respect to GND. When the only positive power supply is used then VSS (Voltage Source Supply) means ground or zero.

What is A +VCC?

Virtual credit cards (VCC) are randomly generated card numbers that are linked to your credit card account. When you use a VCC, your actual credit card information is never used or stored. ... It helps keep your information secure when making purchases online or in-app.